Adesina, OSPopoola, APIPityana, Sisa LOloruntoba, DT2018-11-282018-11-282018Adesina, O.S. et al. 2018. Microstructure and corrosion behavior of laser synthesized cobalt based powder on Ti-6Al-4V. International Conference on Nanomaterials and Biomaterials (ICNB 2017), 11-13 December 2017, Amsterdam, The Netherlands. Published in 2018 as part of the IOP Conference Series: Materials Science and Engineering, Volume 350, 2018.http://iopscience.iop.org/issue/1757-899X/350/1http://iopscience.iop.org/article/10.1088/1757-899X/350/1/012007/pdfhttp://hdl.handle.net/10204/10551Paper presented at the International Conference on Nanomaterials and Biomaterials (ICNB 2017), 11-13 December 2017, Amsterdam, The Netherlands. Published in 2018 as part of the IOP Conference Series: Materials Science and Engineering, Volume 350, 2018.The corrosion behavior of titanium alloys when used for various dynamic offshore components has been a major concern of titanium drilling risers in deepwater energy extraction. A way of achieving specified requirement is the development of coatings suitable to protect the base material against corrosion. In this work, laser cladding technique which is known as a leading edge due to its distinctive properties and outcomes was used in synthesizing Co-based powder on titanium alloy. The processing parameters used were laser power of 900W; scan speed of 0.6 to 1.2 m/min; powderfeedrate1.0g/min; beamspotsize3mm; gasflowrate1.2L/min. The effects of cobalt addition and laser parameters on corrosion behavior of laser clad Ti6AL4V coating in 0.5M sulfuric medium were investigated using linear potentiodynamic polarization. The changes in microstructure and corrosion behavior were analyzed using scanning electron microscopy (SEM) while the X –ray diffraction (XRD) indicates the intermetallics in the coatings. Results showed that the coatings displayed good metallurgical bonding with dendritic formations between the coatings and the substrate. The anodic current density increased with lower scan speed. However, the corrosion current densities of laser-clad samples were lower than Ti6Al4V alloy.enTitanium alloysDeepwater energy extractionNanomaterialsBiomaterialsConference PresentationAdesina, O., Popoola, A., Pityana, S. L., & Oloruntoba, D. (2018). Microstructure and corrosion behavior of laser synthesized cobalt based powder on Ti-6Al-4V. http://hdl.handle.net/10204/10551Adesina, OS, API Popoola, Sisa L Pityana, and DT Oloruntoba. "Microstructure and corrosion behavior of laser synthesized cobalt based powder on Ti-6Al-4V." (2018): http://hdl.handle.net/10204/10551Adesina O, Popoola A, Pityana SL, Oloruntoba D, Microstructure and corrosion behavior of laser synthesized cobalt based powder on Ti-6Al-4V; 2018. http://hdl.handle.net/10204/10551 .TY - Conference Presentation AU - Adesina, OS AU - Popoola, API AU - Pityana, Sisa L AU - Oloruntoba, DT AB - The corrosion behavior of titanium alloys when used for various dynamic offshore components has been a major concern of titanium drilling risers in deepwater energy extraction. A way of achieving specified requirement is the development of coatings suitable to protect the base material against corrosion. In this work, laser cladding technique which is known as a leading edge due to its distinctive properties and outcomes was used in synthesizing Co-based powder on titanium alloy. The processing parameters used were laser power of 900W; scan speed of 0.6 to 1.2 m/min; powderfeedrate1.0g/min; beamspotsize3mm; gasflowrate1.2L/min. The effects of cobalt addition and laser parameters on corrosion behavior of laser clad Ti6AL4V coating in 0.5M sulfuric medium were investigated using linear potentiodynamic polarization. The changes in microstructure and corrosion behavior were analyzed using scanning electron microscopy (SEM) while the X –ray diffraction (XRD) indicates the intermetallics in the coatings. Results showed that the coatings displayed good metallurgical bonding with dendritic formations between the coatings and the substrate. The anodic current density increased with lower scan speed. However, the corrosion current densities of laser-clad samples were lower than Ti6Al4V alloy. DA - 2018 DB - ResearchSpace DP - CSIR KW - Titanium alloys KW - Deepwater energy extraction KW - Nanomaterials KW - Biomaterials LK - https://researchspace.csir.co.za PY - 2018 T1 - Microstructure and corrosion behavior of laser synthesized cobalt based powder on Ti-6Al-4V TI - Microstructure and corrosion behavior of laser synthesized cobalt based powder on Ti-6Al-4V UR - http://hdl.handle.net/10204/10551 ER -